<template class="task-template">
  <section id="crash-hang-section" class="section js-section u-category-windows">
    <header class="section-header">
      <div class="section-wrapper">
        <h1>
          <svg class="section-icon"><use xlink:href="assets/img/icons.svg#icon-windows"></use></svg>
          Handling Window Crashes and Hangs
        </h1>
        <h3>The <code>BrowserWindow</code> module will emit events when the renderer process crashes or hangs. You can listen for these events and give users the chance to reload, wait or close that window.</h3>

        <p>Open the <a href="http://electron.atom.io/docs/api/browser-window">full API documentation<span class="u-visible-to-screen-reader">(opens in new window)</span></a> in your browser.</p>
      </div>
    </header>

    <div class="demo">
      <div class="demo-wrapper">
        <button id="new-window-crashes-demo-toggle" class="js-container-target demo-toggle-button">Relaunch window after the process crashes
          <div class="demo-meta u-avoid-clicks">Supports: Win, macOS, Linux <span class="demo-meta-divider">|</span> Process: Main</div>
        </button>
        <div class="demo-box">
          <div class="demo-controls">
            <button class="demo-button" id="process-crash">View Demo</button>
          </div>
          <p>In this demo we create a new window (via the <code>remote</code> module) and provide a link that will force a crash using <code>process.crash()</code>.</p>
          <p>The window is listening for the crash event and when the event occurs it prompts the user with two options: reload or close.</p>

          <h5>Renderer Process</h5>
          <pre><code data-path="renderer-process/windows/process-crash.js"></code></pre>
        </div>
      </div>
    </div>

    <div class="demo">
      <div class="demo-wrapper">
        <button id="new-window-hangs-demo-toggle" class="js-container-target demo-toggle-button">Relaunch window after the process hangs
          <div class="demo-meta u-avoid-clicks">Supports: Win, macOS, Linux <span class="demo-meta-divider">|</span> Process: Main</div>
        </button>
        <div class="demo-box">
          <div class="demo-controls">
            <button class="demo-button" id="process-hang">View Demo</button>
          </div>
          <p>In this demo we create a new window (via the <code>remote</code> module) and provide a link that will force the process to hang using <code>process.hang()</code>.</p>
          <p>The window is listening for the process to become officially unresponsive (this can take up to 30 seconds). When this event occurs it prompts the user with two options: reload or close.</p>

          <h5>Renderer Process</h5>
          <pre><code data-path="renderer-process/windows/process-hang.js"></code></pre>

          <div class="demo-protip">
            <h2>ProTip</h2>
            <strong>Wait for the process to become responsive again.</strong>
            <p>A third option in the case of a process that is hanging is to wait and see if the problem resolves, allowing the process to become responsive again. To do this, use the <code>BrowserWindow</code> event 'responsive' as shown below.</p>
            <pre><code class="language-js">win.on('responsive', function () {
  // Do something when the window is responsive again
})</code></pre>
          </div>
        </div>
      </div>
    </div>



    <script type="text/javascript">
      require('./renderer-process/windows/process-crash')
      require('./renderer-process/windows/process-hang')
    </script>

  </section>
</template>
